Bad breath, or halitosis, has been around for centuries and is even mentioned in the Talmud as a grounds for divorce. While malodors emanating from the mouth are more frequent in adults, they may occur in children.
The odor-causing culprits are Gram negative anaerobic oral bacteria that decompose proteins to amino acids. Further bacterial decomposition of the sulfur-containing amino acids, cysteine and methionine, generate foul-smelling sulfides, such as hydrogen sulfide, dimethyl sulfide, and methyl mercaptan (the “rotten egg odor”).
A Toothbrush is Not Enough
The key to eliminating bad breath in children is maintaining proper oral hygiene, including tongue cleaning, tooth brushing, flossing and, drinking ample amounts of water.
Learn more about the causes and treatments of bad breath in children here https://www.nycpediatricdentist.com/pediatric-bad-breath-halitosis-in-children